Monitoring
Thermal Sensors
The adapter card incorporates the ConnectX IC, which operates in the range of
temperatures between 0°C and 105°C.
Three thermal threshold definitions impact the overall system operation state:
Warning – 105°C: On managed systems only: When the device crosses the 105°C
threshold, a Warning Threshold message is issued by the management SW,
indicating to system administration that the card has crossed the warning
threshold. Note that this temperature threshold does not require nor lead to any
action by hardware (such as adapter card shutdown).
Critical – 115°C: When the device crosses this temperature, the firmware
automatically shuts down the device.
Emergency – 130°C: If the firmware fails to shut down the device upon crossing the
critical threshold, the device automatically shuts down upon crossing the
emergency (130°C) threshold.
The card's thermal sensors can be read through the system’s SMBus. The user can read
these thermal sensors and adapt the system airflow following the readouts and the
needs of the above-mentioned IC thermal requirements.
Heatsink
A heatsink is attached to the ConnectX®-6 Lx IC in order to dissipate the heat. It is
attached either by using two spring-loaded push pins that insert into four mounting
holes.
ConnectX®-6 Lx IC has a thermal shutdown safety mechanism that automatically shuts
down the ConnectX®-6 Lx card in case of a high-temperature event, improper thermal
coupling or heatsink removal.
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